If you are applying for Parent of a Child Student Visa from within the UK and have been living in the UK with valid leave for at least 12 months prior to the date of your application, you will be deemed to have met the financial requirement.
If you and your Child Student are applying at the same time for either leave to enter or remain where you have both lived in the UK for less than 12 months on the date of application, you will be deemed to have satisfied the financial requirements if the Child Student is able to meet the financial requirement that is applicable to their application for a Child Student Visa.
If none of the above exceptions apply, you can meet the financial requirements by demonstrating that you have funds of £1,560 for each month of your intended stay in the UK up to a total of 9 months. If there are other children applying at the same time, you will need show additional funds of £625 for each month of your intended stay up to a total of 9 months for any additional child other than the Child Student who you intend to care for in the UK.
You will need to demonstrate that you have held the required level of funds for a 28 consecutive days ending not more than 31 days before the date of your application.